Sole-slashing machine.



PATENTED NOV. 26', 1907.

W. G. STEWART. SOLE SLASHING MACHINE.

KPPLIUATION FILED JUN E 28, 1907.

2 SHEETS-SHEBT 1.

I l 1 l n lNVL-W 7 0/5; mum/v QSTEWARZ PATENTED NOV. '26, 1907.

W. G. STEWART. SOLE SLASHING MACHINE.

APPLICATION FILED JUNE 28 190'! 2 SHEETS-SHEET 2.

. muz/yroR WILL/AM 6? SIZ'WARZ' Mf/YESSESE WW NrtrEnsTAT s PATENT OFFICE.

WILLIAM G. sr w RT, or LYNN,.MASSACHU'SETTS, ASSIGNOR To NUFAcTURERs mourns COMPANY, OF MONTGLAIR, NEW JERSEY, A CORPORATION or NEW,

JERSEY. v

SOLE-SLASEINQ- MACHINE.

To all whom it may concern? Be it known that I, WILLIAM C. STEWART, a subject of the Kingpof Great Britain, and a residentof'Lynm county of Essex, State of Massachusetts, have invented an Improve mem in Insole-slashing Machines, of which "the following description. in connection with sole treated thereby was provided with a series of substantially transverse-slashes, and whilethese served to secure a desired flexibilit of the sole, I'have found that increased flexi ility might be attained by also providing slashes in thesoleat an angle to thetransverseslashes, as will hereinafter more fully ap eari The 0 i j ect of the present invention, therefore, is to so improve the machine ofmy prior applicationthat in. addition to the results attained thereby, it will produce slashes in the work at an angle to and intersecting trans verse slashes. n I

' The invention will best be understood from the following description taken in connection with the accompanyin drawings, wherein, "as one embodiment of the invention, I have selected for illustrative pur 'oses the form and general or anization o the machine of my prior app ication to which reference may be had.

In the drawings :Figure 1 is a face or front view of a machine embodying the present invention, said figure being substantially the same as Fig. 1, of my prior appli cation with my present improvements a ed thereto. Fig. 2 is a central sectional detailon the line 22, Fig. 1. Fig. 3 is adiagrammatic face view of a form of insole illustrating the manner of slashing the same by the present invention. Fig. 4 is a detail perspective view of one form of slashlng means or knife detached.

In the particular embodiment of the present invention selected for illustration, the

frame 1 is shown as comprising a suitable Specification of Letters Patent.

Patented ir -1.26, 1907.

' .Applicationfiled31111828.}907. SerialNo.381|194. I

is an eccentric 11, Fig. 1, embraced by an ec-' bed iece having upwardly:.extending'side' centric strap 12, adjustably connected b. a"

rod 13, with a slide ,14, mounted in suita le' guides or ways 15 of the main frame, whereby rotation of the shaft will cause reciprocation of the slide. a .It will be noticed in Fig. 1 that therod' 13 is connected to the slide 14b socket joint, 'so'thatthe ro screwed into the stra any degree of nicety y partial rotation, as wilbeobvious. The slide 14 at its lowerportion is provided top and bottom, Fig. 2, with flanged a ball and 13 can be. 12, and adjusted to guide plates 16, between which -ismountedto slide transversely a knife carrier 17. This knife carrier 17,- see Fig. 1, resents two downwardly extended arms, w 'chembrace the knife 18 are engaged by grooves 1n the between them the knife 18.], The edges of,

carrier arms, the latter being provided with 1 a draw screw 19 by which they ma be drawn to clamp between them. the kni e 18, in any position of adjustment.

To facilitate nice adjustment of the knife 18 the latter is supported at its upper end by.

a set screw 20, w ch, when the knife is released by slackenmg the screw 19, 'may be turned more or less to force said knifefo ward, or'to .permit it to be ushed inward as may be desired, after whic it is clamped by the screw 19. Obviouslyreciprocationof the slide 14, will cause corresponding reciprocation of the knife 18, imparting to the latter What may slashing action. p

In the machine of my prior application it will be noted that slashes were made in the be termed a chopping or material of the insole extending enerally in a transverse direction thereof,

H the pres -v ent invention, however, it ,is desired to roduce on the sole tongue portions, so ca ed,

wherein terminal parts shall be freefrom or be readily understood. 'A s oneexpedient for securing this result the present invention eomprehends provisions for providing the sole with substantially transverse slashes and other slashes disposed at an angle thereto adjacentterminal ortions of said transverse slashes, as will ereinafter more fully appear. j

One means for carrying this feature of the invention into effect is shown in Fig. 4,

wherein the knife or cutter 18 is shown protion or represents the slash made by the cut ..ting edge a, and b, I), represent the substantially longitudinal slashes made at terminal portions of the slashes-a, thereby producing tongues upon the sole, as more fully explained in my-prior application Ser, No

344,526,iiled, Nov. 22, 1906, wherein, the

slashed soleproduced by the machineof the" present application is broadly claimed.

It will be fully understood by those skilled in the art that the form of the knife 18 and the relation of its cutting edges may be varied, the essential with respect thereto being that it shall produce intersecting slashes or form on the sole tongues, whereof terminal portions shall be free from the material of the sole to permit increased flexibility;

The knife 18 is of a selected width and regardless of the particular formation of the cutting edge a andb, will make a cut of a certain length, which, for the best results, should be equal to the shortest cut tobe made in the insole. As the cuts or slashes progress towards the ball part of the sole,

obviously they should prpgress in length to I keep pace with the widenmg sole, and to accomplish this with a knife of fixed width, my invention contemplates making a'plurality of, and preferably two, cuts with the knife for each feed step of the sole, the first out being made adjacent one edge of the sole and extending inward more or less across the sole, and then, as the knife is withdrawn, it is moved endwise or across the sole into a correspondingposition relative to the opposite edge of the sole and given a second out ting movement. The two successive cuts may, of course, overlap more or less accprding to the relative length of knife and width of sale; thus at the narrower portions of the sole the two cuts may be superposed one u on the other, while at the wider portions 0 the sole the successive cuts may extend in substantial transverse prolongation of each the same place.

evnece the two outs of the knife'to produce the slash nearest the toe are indicated by the single set of lines a, b, b; in other words the two cuts at this point of the sole may beimade in The next pair of cuts is represented by the lines a, b b and a 6 6 respectively, the cuts a and (1 extending transversely of the sole in substantial prolongation of each other, and the cuts 6 and b intersecting the transverse cuts as shown.

It is evident, therefore, that for every step feed of the sole there must be two downward or chopping strokes of the cutter, and that between downward strokes of the cutter the latter is moved endwise across the sole from one to the opposite side thereof, this endwise movement being obtained by sliding the knife carrier in its transverse guides 16, on the reciprocal head or slide 14. To accomplish this I have connected to the said knife carrier at one side a connecting rod 21, jointed at itsouter end to a depending arm of a bell-crank lever 22, fulcrurned at 23, in a bracket '24, on one of the frame side members. This bell-crank lever through its arm 25, and adjunctive parts is actuatedfrom the main shaft 2, through the gearing 34, 35, connecting rod 31, and slide rod 28 as fully explained in my prior application S81.NO. 316,102 and which need not therefore be herein described in more detail, except to say that the gear wheel 34 is driven by the gear 35, atone half speed of the main shaft.

From the foregoing it will appear that reciprocation, of the slide rod 28, through its springs 30, and connected parts will rock the bell-crank 22, and impart transverse reciprocation to the knife carrier and its knife in the reciprocating slide14, so that the said knife has a combined up and down or chopping movement'and also an endwise sliding movement to produce a cut, when necessary, that is longer than the width of the knife itself, substantially in all respects as pointed out in my application above referred to.

Referring particularly to Fig. 2, the bed of the frame is provided with an. anvil 36, presenting an outer curved face over which the sole to be slashed may be drawn, as indicated in dotted lines, (Fig. 2

Immediately behind the anvil '36, is the feed roller 37, and above it the presser roller 38. The feed roller which preferably is of metal with a corrugated or roughened surface, but which may have a rubber or other yielding surface, if desired, is fast upon a shaft 39, journaled in the frame which may be given a step-by step movement by any suitable or appropriate means such as that pointed out 111 my application Ser. No. 316,102 hereinbefore referred to.

The presser roller 38, Fig. 2, is loosely mounted in a pair of arms 47, loosely mounted upon the shaft 48, journaled in the 'SlClB members. These arms 1 47,. arepie-f vided' respectively with' rearwardly extended knifei'portions 49, provided with adjusting screws5'0jwhichare 'ac'ted uponfby presser springs51,'seated in the frame, and which,

tend to throw the presser roller38, normally downward into contact with the'sole resting actnatedmovement of 'thepresser roller is normally restrained and' controlled'by con upon the feed roll 37. downwardspring tact with' two pinsi52, carried in a pair of 7 arms. '53, that are fast onsaid shaft 48, and

rolle r"54. The said shaft 48 is rovided with carryat their outer'ends a flexing or bending a tr'eadle arm 55, connected y a rod 56,

Witha-.suitable treadle' (not shown), and is rovided with a return spring 57, acting in 3 opposition to'the' treadle, said spring 57 beg fing'of sufiicientfstrength to overcome the 'presse'r' 51, and normally compress ,theglatter to hold both the flexing roller 54,

' and thepresSer roller 38, normally in their elevated position.

In the rear of and between the 'presser and feedrollers stands a feeding stop 57 on a rod 58, adjustably mounted in an arm 59,

; on a shaft 60, mounted in the machine frame.

i leadingend' accurate y in position.

against t e stop 57 resses xthe treadle and brings the presser and This shaft is provided with a second horizontally extended arm 61, that overlies an ear 62, v on one ofthe fiexer arms 53. All of' which is fully explained in my prior application referred to. I

The sole to be slashed is inserted over the anvil beneath'the knife 18, and between the 35' feedand resser rollers with its end abutting The operator now demovement'of the treadle brings the flexing .25 the anvil 36, so that that. ortion of the sole rollenfi i, down upon the sole to bend or flex the latter over and upon the curved face of which is to receive the s ash or cut of the knife is bent into convex form with its top feed 'of the latter between the rollers.

face under'tension and calculated to receive a slash with the least effort and with the cleanest cut by the slashing means. As the flexing roller 54, is advanced its ear 62, rises under-the arm 61, of the abutting stop 57 and lifts said stop into a position above the level of the sole so as not to interfere with tlzie now the main shaft 2, be given motion it will cause the slashing knife to reciprocate ra idly to make a series of slashes 1n the inso e as the latter is fed step-by-step between. the feed and presser rollers, the machine being timed up so that each slash cut takes place during a period of rest between successive feeds of the sole, and said knife, as stated, is given a transverse or endwise movement bethrough the machine.

n is well imderstoed by thosei skilled the art that the areasto be slashedare rarely tween success ve downward cutting move ments., all as'fullysetforth in my appli'eation' alike, either in slfape'or 3 extent, and therefore in the present machine as in that of nypri'orapplication provide rneanswhereby'to, conv l f m he W9 1; it elf ".t i i re; eii e...

slashed. To accomplish this, see Fig. 1,.1

have pivoted to the front edge of the bed at 63, two feeler arms 64, and intermediate their ends they are provided with inwardly Q and upwardly extending contact ears 65,"

adapted to pressagainst and follow the out line or periphery of the sole edge fed between them. Said feelers are drawnnormally towards eachother by a connecting spring 66.

Obviously, as a sole is fed between these feelers they will gradually spread or con-* tract and follow the shape of the sole con} tour. To communicate this telltale or rnea'swedge shaped slides 68 and 69, mounted to slide in suitable bearings 70, on the frame. Obviously as these feelers are spread by increasing width of the sole the opposite movements of the wedge slides 68, 69, will'cause the inclined. or wedge faces to be effectively separated, and conversely as these feelers approach to indicate a narrowing sole, the opposite return movements of said wedge slides-will effectively contract the space between their beveled or inclined faces. It is likewise true that if one sole edge were straight and the other one were curved, or if one presented less curvature than the other, in each case the wedge slides for the respective sole edges would, by their positions, cor- 1 rectly indicate the shape of the sole being fed As more fully shown in my priorapplica tion referred to, there is a stop rod 71, play- 1 ing transversely, see Fig. 1, between the in clined faces of the slides 68, 69, and this stop;

rod is extended substantially parallel with the slide rod 28 and is mounted at one of its of said slides determines the length of the transverse reciprocations of the knife which may vary from time to time according to the shape of the sole. Thus, as pointed out in my application referred to, the. transverse reciprocations of the-knife 18, are controlled and determined by the feelers 64 and their connected devices and a slashed area produced upon the sole.

From the construction hereinbefore described it willbe obvious that upon presentation of a shoe sole in the manner stated, the

knife 18, having its substantially transverse and longitudinal cutting edges a and b, will form successive cuts transversely of the sole in prolongation of each other and will at the same time, form cuts at an angle thereto to produce tongue portions having free terminal parts. It is obvious also that the transverse cuts may be disposed in various relaand longitudinal cuts in a-sole, and actuating means therefor to produce a slashed areaon the surface of a sole and means to vary the position of the transverse cuts.

3. A sole slashing machine comprising in combination slashing means having cutting edges disposed at an angle to each other to form substantially transverse and longitudinal slashes, and actuating means therefor to produce a slashed area of such slashes on the surface of a sole.

4. A sole slashing machlne comprising in combination slashing means arranged. to'

form a slashed areaon the surface of a sole and having I'OVlSlOIlS for forming cuts at an angle to eac 1 other, and means to cause the slashing means to act upon the Work in a plurality of positions for making a slash in one direction.

5. A sole slashing machinecomprising in combination slashing means constructed and arranged to form substantially transverse and longitudinal cuts inthe surfaceiof a sole, and means for causing the slashing means to act upon the work in different positions transversely of the work in varying the transverse position of said transverse and longitudinal cuts.

6. In a slashing machine, the combination of slashing means constructed and arranged to form cuts in the surface of a sole at an angle to each other, and means for causing the slashing means to act alternatively at different distances from an edge of the work.

7. A slashing machine comprising in com; bination, slashing means having provisions for forming cuts in the surface of a shoe sole at an angle to each other, and work. governed means 'to vary the slashed area of the work. i

8. A slashing machine comprising in combination slashing means constructed and arranged to form cuts in the surface of a sole at an angle to each other, and automatic slashspositioning means to vary the-location of slashes to produce a slashedarea on the work being.treated.

9. A slashing machine comprising, in combination, slashing means constructed and arranged to form intersecting cuts in the sur face of the work, and means cooperating with the work to determine the length of a slash by reference to a dimension of the Work.

10. Asole slashing machine comprising-in combination, a knife having substantially transverse and substantially longitudinal cutting edges, and actuating means therefor to produce a slashed area comprising tongues on the surface of a shoe sole and means for varying the contour of such slashed area.

11. In a sole-slashing machine, the combination of a knife having substantially transverse and longitudinal cutting edges, means for reciprocating said knife, and means for changing its path of reciprocation transversely of the work.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

WILLIAM C. STEWART.

Witnesses:

JOHN J. HEYS, REDFIELD H.ALI..|EN. 

